Hello.
Describing to someone your height; It would be nonsense telling you have -1 meter, for example.
Describing your age; An age of -3 years is meaningless.
Counting the number of inhabitants in a city. Again, a city with -3000 inhabitants can not exist.
You use Pythagoras theorem for this:
You add 52 and 20 for AC which is 72
So you do
X^2 = 72^2 + 30^2
X^2 =5184 + 900
X^2= 6084
X = 6084 squared root
X= 78
Answer:
Y-intercept
Step-by-step explanation:
The y-intercept is the part of the line that crosses the y-axis.
The red dot (where the arrow is pointing to) is the y intercept
You can use the FOIL method when you have two binomials.
First, outer, inner, last
If you are working out the diagonal line you need to use Pythagoras Theroum: c² = a²+b²
c² = 7²+12² = 193
√c² = c = √193 = 13.89
The length of the diagonal side is 13.89,
Hope this helps! :)
